<template>
  <div class="outer">
    <!-- 三级分类导航 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--面包屑导航-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <span href="#">全部结果</span>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 三级分类面包屑 -->
            <li class="with-x" v-if="searchParams.categoryName">
              {{ searchParams.categoryName }}<i @click="removeCategory">×</i>
            </li>
            <!-- 关键字面包屑 -->
            <li class="with-x" v-if="searchParams.keyword">
              {{ searchParams.keyword }}<i @click="removeKeyword">×</i>
            </li>
            <!-- 品牌面包屑 -->
            <li class="with-x" v-if="searchParams.trademark">
              {{ searchParams.trademark.split(":")[1] }}
              <i @click="removeTrademark">×</i>
            </li>
            <!-- 属性面包屑 -->
            <li
              class="with-x"
              v-for="(prop, index) in searchParams.props"
              :key="index"
            >
              {{ prop.split(":")[1] }}
              <i @click="removeProp(index)">×</i>
            </li>
          </ul>
        </div>

        <!-- 搜索器 -->
        <SearchSelector
          @searchOfTrademark="searchOfTrademark"
          @searchOfProps="searchOfProps"
        />

        <!--商品展示区-->
        <div class="details clearfix">
          <!-- 列表操作区 -->
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li
                  :class="{ active: orderId === '1' }"
                  @click="changeOrder('1')"
                >
                  <a
                    >综合<i
                      v-if="orderId === '1'"
                      class="iconfont"
                      :class="{
                        'icon-top': orderType === 'desc',
                        'icon-arrow-up': orderType === 'asc',
                      }"
                    ></i
                  ></a>
                </li>
                <li
                  :class="{ active: orderId === '2' }"
                  @click="changeOrder('2')"
                >
                  <a
                    >价格<i
                      v-if="orderId === '2'"
                      class="iconfont"
                      :class="{
                        'icon-top': orderType === 'desc',
                        'icon-arrow-up': orderType === 'asc',
                      }"
                    ></i
                  ></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="good in goodsList" :key="good.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to="`/detail/${good.id}`">
                      <img v-lazy="good.defaultImg" />
                    </router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ good.price }}.00</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a target="_blank" href="item.html" :title="good.title">{{
                      good.title
                    }}</a>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <PageNation
            @changePageNo="changePageNo"
            :total="total"
            :continues="5"
            :pageNo="searchParams.pageNo"
            :pageSize="searchParams.pageSize"
          ></PageNation>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { mapGetters, mapState } from "vuex";
import SearchSelector from "./SearchSelector";
export default {
  name: "Search",
  data() {
    return {
      searchParams: {
        category1Id: "",
        category2Id: "",
        category3Id: "",
        categoryName: "",
        keyword: "",
        props: [],
        trademark: "",
        order: "1:desc",
        pageNo: 1,
        pageSize: 5,
      },
    };
  },
  components: {
    SearchSelector,
  },
  beforeMount() {
    // 从路径上获取params参数和query参数,在挂载发起请求前将params参数和query参数添加到发请求的参数里面，
    // 但是挂载之后路再搜索框输入或者点击三级分类，页面不会重新发送请求，所以我们需要监听路径，路径已发生改变，我们就重新修改params参数和query参数，重新发请求
    this.editParams();
    /* let { keyword } = this.$route.params;
    let { categoryName, category1Id, category2Id, category3Id } =
      this.$route.query;
    let searchParams = {
      ...this.searchParams,
      keyword,
      categoryName,
      category1Id,
      category2Id,
      category3Id,
    };
    this.searchParams = searchParams; */
  },
  mounted() {
    this.getGoodsList();
  },
  methods: {
    // 请求数据
    getGoodsList(flag) {
      if (!flag) {
        //说明点击的不是页码，我们请求数据就需要从第一页开始请求
        this.searchParams.pageNo = 1;
      }
      this.$store.dispatch("getGoodsList", this.searchParams);
    },
    // 封装成函数，多处需要使用
    editParams() {
      let { keyword } = this.$route.params;
      let { categoryName, category1Id, category2Id, category3Id } =
        this.$route.query;
      let searchParams = {
        ...this.searchParams,
        keyword,
        categoryName,
        category1Id,
        category2Id,
        category3Id,
      };
      //   当searchParams里面的参数是空串或者undefined或者空数组的时候，发请求的时候我们不希望带在参数里面
      Object.keys(searchParams).forEach((key) => {
        if (!searchParams[key]) {
          delete searchParams[key];
        }
      });
      this.searchParams = searchParams;
    },
    // 三级分类面包屑删除
    removeCategory() {
      this.searchParams.categoryName = undefined;
      this.$router.push({ name: "search", params: this.$route.params });
    },
    // 关键字面包屑删除
    removeKeyword() {
      this.searchParams.keyword = undefined;
      this.$router.push({ name: "search", query: this.$route.query });
      // 通知Header组件清空输入框里面的内容（使用全局事件总线）
      this.$bus.$emit("clearKeyword");
    },
    // 按品牌搜索
    searchOfTrademark(tm) {
      (this.searchParams.trademark = `${tm.tmId}:${tm.tmName}`),
        this.getGoodsList();
    },
    // 删除品牌面包屑
    removeTrademark() {
      (this.searchParams.trademark = undefined), this.getGoodsList();
    },
    // 按属性搜索
    searchOfProps(attr, attrValue) {
      let prop = `${attr.attrId}:${attrValue}:${attr.attrName}`;
      // 判断参数中是否已经有点击的那个属性，有的话就不需要重新添加和发送请求
      let flag = this.searchParams.props.some((item) => {
        return item === prop;
      });
      if (flag) {
        alert("您已选择该属性");
        return;
      }
      // 没有的话就需要添加进去并且重新发送请求获取数据
      this.searchParams.props.push(
        `${attr.attrId}:${attrValue}:${attr.attrName}`
      );
      this.getGoodsList();
    },
    // 删除属性面包屑
    removeProp(index) {
      this.searchParams.props.splice(index, 1);
      this.getGoodsList();
    },
    // 改变排序选中项
    changeOrder(id) {
      // 看原来选中的是哪一个,如果是一样的，那么就是切换排序类型，如果不是一样的，那么就是切换排序id
      let oldId = this.orderId;
      let oldType = this.orderType;
      // console.log(id, oldId, oldType);
      let newOrder;
      if (oldId === id) {
        newOrder = `${oldId}:${oldType === "desc" ? "asc" : "desc"}`;
      } else {
        newOrder = `${id}:desc`;
      }
      this.searchParams.order = newOrder;
      this.getGoodsList();
    },
    // 改变选中页码
    changePageNo(pageNo) {
      (this.searchParams.pageNo = pageNo),
        // 传一个布尔值区别其他搜索，因为当我们重新点击搜索条件的时候需要从第一页开始渲染
        this.getGoodsList(true);
    },
  },
  computed: {
    ...mapGetters(["goodsList"]),
    ...mapState({
      total: (state) => state.search.goodsList.total,
    }),
    orderId() {
      return this.searchParams.order.split(":")[0];
    },
    orderType() {
      return this.searchParams.order.split(":")[1];
    },
  },
  watch: {
    $route: {
      handler(newVal, oldVal) {
        this.editParams();
        this.getGoodsList();
      },
    },
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
}
</style>